In March 2018, the low loss and large effective area G.654.E optical fibre provided by YOFC, in a project cooperated with the State Grid Information & Telecommunication Co., Ltd. and Accelink Technologies Co., Ltd., successfully refreshed the non-relay transmissionworld record of single-span distance 2.5G and 10G system. It shows the leading edge of YOFC's new optical fibre preparation technology in the ultra-long single-span non-relay system and YOFC’s technological innovation strength in the optical fibre communication field for many years.